(283-13.4)JUST ANSWER SECTION 3, THERE IS NOT NEED TO ANSWER THE OTHER ONES. ALSO, PLEASE BE CLEAR ON YOUR ANSWER SINCE THE LAST TIME IT WAS ANSWER WAS INCORRECT, THANSK Consider the following.\[ f(x, y) = 7x - 5y \](a) Find \( f(4, 5) \) and \( f(4.1, 5.05) \) and calculate \( \Delta z \).- \( f(4, 5) = 3 \) ✅- \( f(4.1, 5.05) = 3.45 \) ✅- \( \Delta z = 0.1 \) ❌(b) Use the total differential \( dz \) to approximate \( \Delta z \).- \( dz = 0.45 \) ✅

Answered: Image /qna-images/answer/cac45556-e819-4ba6-a076-c8f0578e55e0.jpg

Answered: Consider the following. f(x, y) = 7x –…

Consider the following. f(x, y) = 7x – 5y (a) Find f(4, 5) and f(4.1, 5.05) and calculate Az. f(4, 5) = 3 f(4.1, 5.05) = 3.45 Az = 0.1 (b) Use the total differential dz to approximate Az. dz = 0.45

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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